Martial arts to get built

[u/Terranam1]

Hi Im 21 and got a little bit of muscle and a little bit of fat and do MUAY THAI on rare occasion (to learn how to fight and 2 to get built); I ask my instructors if there are any exercises I can do outside of class to get better and they shrug it off or say hit the heavy bag for 30 minutes. Anyway I was wondering what martial art would get me built the quickest or just built in general? And is the instructor advice sound

[u/datcatburd]

Eat a calorie surplus and lift heavy targeting hypertrophy. That's how you get built. Nothing to do with martial arts, unless you're into sumo. :D